Just to add to the conversation...
I use a 3C589D network card in my A1200 on WB3.0, with the 3C589D driver from aminet, AmiTCP, and SMBFS. That’s all I need for networking (Oh, and a few scripts to fire up SMBFS to avoid all the typing and DOPUS to allow me to work with shared drives on the network).
Hint...SMBFS doesn't run reliably with the stack size at the default setting. I think it needs to be set to the maximum allowable under WB3.0 for reliable operation (Otherwise closing it would tend to result in crashes) ... Thanks for the tip Thomas.
Btw ... This is useful ...
http://www.acc.umu.se/~patrikax/amiga/guides/AmiTCP_Install/Hodgkinson.